Rope and Breasts (1983)

Sayo is running a travelling BDSM show with her husband, where she plays the bottom, and gets increasingly bored with her life. During their tour in Kyoto, they are arranged by a well-off couple who ask for a private show, without knowing that they will eventually be forced for the "real thing". Scripted by Chiho Katsura using the pseudonym Eizo Uji.